<?php

/**
 * @author Thomas Müller
 * @copyright 2014 Thomas Müller deepdiver@owncloud.com
 * later.
 * See the COPYING-README file.
 */

namespace Test\App;

use OC;
use OC\App\Platform;
use OCP\IL10N;

class DependencyAnalyzer extends \PHPUnit_Framework_TestCase {

	/**
	 * @var Platform
	 */
	private $platformMock;

	/**
	 * @var IL10N
	 */
	private $l10nMock;

	public function setUp() {
		$this->platformMock = $this->getMockBuilder('\OC\App\Platform')
			->disableOriginalConstructor()
			->getMock();
		$this->platformMock->expects($this->any())
			->method('getPhpVersion')
			->will( $this->returnValue('5.4.3'));
		$this->platformMock->expects($this->any())
			->method('getDatabase')
			->will( $this->returnValue('mysql'));
		$this->platformMock->expects($this->any())
			->method('getOS')
			->will( $this->returnValue('Linux'));
		$this->platformMock->expects($this->any())
			->method('isCommandKnown')
			->will( $this->returnCallback(function($command) {
				return ($command === 'grep');
			}));

		$this->l10nMock = $this->getMockBuilder('\OCP\IL10N')
			->disableOriginalConstructor()
			->getMock();
		$this->l10nMock->expects($this->any())
			->method('t')
			->will($this->returnCallback(function($text, $parameters = array()) {
				return vsprintf($text, $parameters);
			}));
	}

	/**
	 * @dataProvider providesPhpVersion
	 */
	public function testPhpVersion($expectedMissing, $minVersion, $maxVersion) {
		$app = array(
			'dependencies' => array(
				'php' => array()
			)
		);
		if (!is_null($minVersion)) {
			$app['dependencies']['php']['@attributes']['min-version'] = $minVersion;
		}
		if (!is_null($maxVersion)) {
			$app['dependencies']['php']['@attributes']['max-version'] = $maxVersion;
		}
		$analyser = new \OC\App\DependencyAnalyzer($app, $this->platformMock, $this->l10nMock);
		$missing = $analyser->analyze();

		$this->assertTrue(is_array($missing));
		$this->assertEquals($expectedMissing, $missing);
	}

	/**
	 * @dataProvider providesDatabases
	 */
	public function testDatabases($expectedMissing, $databases) {
		$app = array(
			'dependencies' => array(
			)
		);
		if (!is_null($databases)) {
			$app['dependencies']['database'] = $databases;
		}
		$analyser = new \OC\App\DependencyAnalyzer($app, $this->platformMock, $this->l10nMock);
		$missing = $analyser->analyze();

		$this->assertTrue(is_array($missing));
		$this->assertEquals($expectedMissing, $missing);
	}

	/**
	 * @dataProvider providesCommands
	 */
	public function testCommand($expectedMissing, $commands) {
		$app = array(
			'dependencies' => array(
			)
		);
		if (!is_null($commands)) {
			$app['dependencies']['command'] = $commands;
		}
		$analyser = new \OC\App\DependencyAnalyzer($app, $this->platformMock, $this->l10nMock);
		$missing = $analyser->analyze();

		$this->assertTrue(is_array($missing));
		$this->assertEquals($expectedMissing, $missing);
	}

	function providesCommands() {
		return array(
			array(array(), null),
			// grep is known on linux
			array(array(), array(array('@attributes' => array('os' => 'Linux'), '@value' => 'grep'))),
			// grepp is not known on linux
			array(array('The command line tool grepp could not be found'), array(array('@attributes' => array('os' => 'Linux'), '@value' => 'grepp'))),
			// we don't care about tools on Windows - we are on Linux
			array(array(), array(array('@attributes' => array('os' => 'Windows'), '@value' => 'grepp'))),
			// grep is known on all systems
			array(array(), array('grep')),
		);
	}

	function providesDatabases() {
		return array(
			// non BC - in case on databases are defined -> all are supported
			array(array(), null),
			array(array(), array()),
			array(array('Following databases are supported: sqlite, postgres'), array('sqlite', array('@value' => 'postgres'))),
		);
	}

	function providesPhpVersion() {
		return array(
			array(array(), null, null),
			array(array(), '5.4', null),
			array(array(), null, '5.5'),
			array(array(), '5.4', '5.5'),
			array(array('PHP 5.4.4 or higher is required.'), '5.4.4', null),
			array(array('PHP with a version less then 5.4.2 is required.'), null, '5.4.2'),
		);
	}
}